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Finding the Fourth Proportional to 98,669.58, 136,161.99 and 53,957.58

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Solution

The fourth proportional to 98,669.58, 136,161.99 and 53,957.58 is: 74,460.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,669.58 : 136,161.99 = 53,957.58 : x
  2. Step 2: Convert to fraction form
    98,669.58/136,161.99 = 53,957.58/x
  3. Step 3: Cross multiply
    98,669.58x = 136,161.99 × 53,957.58
  4. Step 4: Simplify right side
    98,669.58x = 7,346,971,468.38
  5. Step 5: Solve for x
    x = 7,346,971,468.38/98,669.58
  6. Step 6: Final answer
    x = 74,460.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.